Three-layer cross-flow cylinder head water jacket and flow rate adjusting system thereof

Abstract

The application discloses a three-layer cross-flow type cylinder cover water jacket and a flow speed adjusting system thereof, and relates to the technical field of engine cooling systems. The three-layer cross-flow type cylinder cover water jacket comprises a main body assembly, a lower water jacket arranged on an engine cylinder cover, an upper water jacket arranged on the lower water jacket, and an intermediate water jacket arranged between the upper water jacket and the lower water jacket. The three-layer cross-flow type cylinder cover water jacket can realize uniform cooling by setting the main body assembly, the water pipe main body and the adjusting assembly. The water pipe main body is arranged at the water inlet of the lower water jacket and the water outlet of the upper water jacket, and comprises an inflow pipe, an adjusting pipe arranged at one end of the inflow pipe and an outflow pipe connected to the adjusting pipe at a position away from the inflow pipe. The adjusting assembly is arranged outside the water pipe main body and comprises a magnet fixed on the inflow pipe, an adjusting block sleeved on the outflow pipe at a position close to the magnet and a heat-sensitive winding wire fixed on the outflow pipe at a position away from the adjusting block. The heat-sensitive winding wire is arranged at a position where the temperature difference of the cooling water channel is relatively large. The electric current of the heat-sensitive winding wire is changed by the temperature generated by the engine, so that the magnetic force generated by the winding wire is changed to adjust the opening degree of the adjusting pipe, and the flow speed of the cooling liquid in the cooling system is changed to make the flow of the cooling liquid in the engine more reasonable.

Description

Technical Field

[0001] This invention relates to the technical field of engine cooling systems, and more particularly to a three-layer cross-flow cylinder head water jacket and its flow rate regulation system. Background Technology

[0002] The cylinder head, a crucial component of automotive internal combustion engines, primarily seals the upper portion of the cylinder, forming the combustion space together with the piston crown and cylinder wall. During engine operation, parts in contact with the high-temperature combustion gases are intensely heated. Without proper cooling, this can lead to overheating, a decreased charging coefficient, abnormal combustion (such as knocking and pre-ignition), oil deterioration and burning, and increased friction and wear on parts, resulting in a comprehensive deterioration of the engine's power, fuel economy, reliability, and durability. However, excessive cooling can also cause poor air-fuel mixture formation, oil dilution due to combustion, and increased wear on parts, further impairing engine performance. Therefore, a good cooling structure ensures the engine operates at its optimal temperature. The cylinder head's cooling structure design is extremely important; the water jacket design has a decisive impact on cylinder head heat dissipation, and the rationality of the water jacket arrangement must be considered to achieve the best heat dissipation effect. The cooling effect of water jackets directly affects engine performance. By allowing coolant to flow in, they can quickly cool the intake and exhaust passages and combustion chamber area. However, most existing water jackets are two-layered, which cannot effectively cool the engine, leading to abnormal combustion phenomena such as knocking. Furthermore, because the flow rate in the coolant pipes cannot be adjusted locally according to temperature, the coolant cannot stay in high-temperature areas for a longer time and in low-temperature areas for a shorter time, thus failing to achieve better cooling. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problem that existing three-layer cross-flow cylinder head water jackets are mostly two-layered and cannot effectively cool the engine, this invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a three-layer cross-flow cylinder head water jacket.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a three-layer cross-flow cylinder head water jacket, comprising a main body assembly including an engine cylinder head, a lower water jacket disposed on the engine cylinder head, and an upper water jacket disposed on the lower water jacket to connect the upper water jacket and the lower water jacket to an intermediate water jacket.

[0007] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket of the present invention, wherein: the engine cylinder head is provided with a cylinder head water jacket on the inner side, and the cylinder head water jacket is provided with a cylinder head exhaust port at one end of the engine cylinder head exhaust side.

[0008] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket of the present invention, wherein: the lower water jacket is provided with a lower water jacket inlet at one end near the exhaust side of the engine cylinder head, the lower water jacket is provided with a plurality of column feet at intervals that communicate with each cylinder of the cylinder head water jacket, and the lower water jacket inlet is connected to the cylinder head outlet.

[0009] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket of the present invention, wherein: the lower water jacket is provided with a plurality of cooling channels, the plurality of cooling channels are connected to the column base and finally lead to the upper water jacket, and the cooling channels are provided with cooling corners at the intake and exhaust valve noses, and coolant can flow into the cooling corners, which can make the coolant more easily cool the intake and exhaust valve noses of the engine cylinder head.

[0010] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket of the present invention, wherein: the upper water jacket is provided with an upper water jacket outlet at one end near the air intake side of the engine cylinder head, one end of the upper water jacket outlet is connected to the middle water jacket and several cooling channels, and the other end is connected to the return water pipe.

[0011] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket of the present invention, the intermediate water jacket is connected to the upper and lower water jackets, and the intermediate water jacket is located between the upper and lower exhaust channels.

[0012] The beneficial effects of this invention are: by adopting a three-layer cross-flow cylinder head water jacket, the engine temperature is effectively cooled, achieving rapid cooling in high-speed areas and appropriate cooling in other areas, reducing fuel consumption and hydrocarbon pollutant emissions. The water jacket is designed to be compact and can effectively cover high-temperature areas such as the cylinder head intake and exhaust ports and combustion chamber, achieving uniform cooling.

[0013] In view of the problem that the coolant flow rate in the existing water jacket of the current engine cooling system cannot be locally changed according to temperature, the present invention is proposed.

[0014] Therefore, the purpose of this invention is to provide a three-layer cross-flow cylinder head water jacket flow rate regulation system.

[0015] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a three-layer cross-flow cylinder head water jacket flow rate regulation system, including any of the three-layer cross-flow cylinder head water jackets described above; and a water pipe body, the water pipe body being disposed at the inlet of the lower water jacket and the outlet of the upper water jacket, including an inflow pipe, a regulating pipe disposed at one end of the inflow pipe and an outflow pipe connected to the end of the regulating pipe away from the inflow pipe; and an regulating component, the regulating component being disposed on the outside of the water pipe body, including a magnet fixed on the inflow pipe, an regulating block sleeved on the end of the outflow pipe near the magnet, and a thermal winding wire fixed on the end of the outflow pipe away from the regulating block.

[0016] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket flow rate regulation system of the present invention, wherein: the regulating pipe is provided with a claw at one end near the outlet pipe, the claw can be opened by external force, and the regulating pipe is provided with an annular opening on the outside.

[0017] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket flow rate regulation system of the present invention, wherein: a sliding groove is provided on the outer side of the outflow pipe near one end of the outflow pipe, and a retaining ring that cooperates with the claw is provided inside the outflow pipe.

[0018] As a preferred embodiment of the three-layer cross-flow cylinder head water jacket flow rate adjustment system of the present invention, wherein: the adjustment block is provided with a slider that cooperates with the slide groove, and a plurality of magnets are installed on the side of the slider, the north and south poles of the plurality of magnets are oriented in the same direction and are attracted to the side of the magnets near the outlet pipe, and the adjustment block is provided with a latch at the end near the adjustment pipe, and the latch cooperates with the ring.

[0019] The beneficial effects of this invention are as follows: A thermistor winding is installed at the junction of the cooling water channels where the temperature difference is large. The current of the thermistor winding is changed by the temperature generated by the engine, thereby changing the opening of the regulating tube by the magnetic force generated by the winding, and thus changing the flow rate of the coolant in the cooling system to make the flow of coolant in the engine more reasonable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of the three-layer cross-flow cylinder head water jacket of the present invention.

[0022] Figure 2 This is a top view schematic diagram of the overall structure of the three-layer crossflow cylinder head water jacket of the present invention.

[0023] Figure 3This is a schematic diagram of the lower water jacket structure of the three-layer cross-flow cylinder head water jacket of the present invention.

[0024] Figure 4 This is a schematic diagram of the upper water jacket structure of the three-layer cross-flow cylinder head water jacket of the present invention.

[0025] Figure 5 This is a schematic diagram of the middle water jacket structure of the three-layer cross-flow cylinder head water jacket of the present invention.

[0026] Figure 6 This is a schematic diagram of the overall structure of the three-layer cross-flow cylinder head water jacket flow rate regulation system of the present invention.

[0027] Figure 7 This is a schematic diagram of the overall exploded structure of the three-layer cross-flow cylinder head water jacket flow rate regulation system of the present invention.

[0028] Figure 8 This is a partial structural diagram of the thermal winding wire described in the three-layer cross-flow cylinder head water jacket flow rate regulation system of the present invention.

[0029] Figure 9 This is a schematic cross-sectional view of the regulating block structure in the three-layer cross-flow cylinder head water jacket flow rate regulating system of the present invention. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Reference Figures 1-5 A three-layer cross-flow cylinder head water jacket is provided, including a main assembly 100, including an engine cylinder head 101, a cylinder head water jacket on the outer side of the engine cylinder head 101, a cylinder head water outlet at one end of the cylinder head 101 on the exhaust side, a lower water jacket 102 disposed on the engine cylinder head 101, a lower water jacket inlet 105 at one end of the lower water jacket 102 near the exhaust side of the engine cylinder head 101, a plurality of pillars 106 spaced apart on the lower water jacket 102 communicating with each cylinder of the cylinder head water jacket, the lower water jacket inlet 105 communicating with the cylinder head water outlet, and a plurality of cooling channels 107 provided inside the lower water jacket 102, the plurality of cooling channels 107 communicating with the pillars 106. The cooling sleeve 108 is located at the intake and exhaust valve nose bridge of the upper water jacket 103 and the cooling branch 107. Coolant can flow into the cooling sleeve 108, which makes it easier to cool the intake and exhaust valve nose bridge of the engine cylinder head 101 by circulating the coolant around it. The upper water jacket 103 is set on the lower water jacket 102. The upper water jacket 103 has an upper water jacket outlet 109 at one end near the intake side of the engine cylinder head 101. One end of the upper water jacket outlet 109 is connected to the intermediate water jacket 104 and several cooling branch 107, and the other end is connected to the return water pipe. The intermediate water jacket 104 is connected between the upper water jacket 103 and the lower water jacket 102. The intermediate water jacket 104 is connected to the upper and lower water jackets 102 and is located between the upper and lower exhaust passages. The intermediate water jacket 104 has a connecting part 104a at both ends. The intermediate water jacket 104 is connected to the upper water jacket 103 and the lower water jacket 102 through the connecting part 104a.

[0036] Specifically, the upper water jacket 103, the intermediate water jacket 104, and the lower water jacket 102 adopt a segmented structure. The coolant flows in a cross-flow direction, from the exhaust side where the engine temperature is higher to the intake side where the temperature is lower, reducing the temperature difference between the intake and exhaust sides and achieving uniform cooling. The coolant inlet of the intermediate water jacket 104 is located in the lower water jacket 102, and the outlet is located in the upper water jacket 103, increasing the pressure difference between the inlet and outlet, while ensuring uniform cooling of the four cylinders, reducing the temperature difference, and improving the cooling effect. The intermediate water jacket 104 is connected to both the upper water jacket 103 and the lower water jacket 102. Part of the coolant flows from the lower water jacket 102 through the intermediate water jacket 104, and then through the high-temperature area of ​​the engine before flowing to the upper water jacket 103. The other part flows directly from the lower water jacket 102 into the upper water jacket 103 through the cooling branch 107, further ensuring uniform cooling of the four cylinders.

[0037] Preferably, the upper water jacket 103 has process holes to reduce the temperature in the exhaust passage junction area. The upper water jacket 103 and the lower water jacket 102 are close to the combustion chamber area, and a cooling wrap angle 108 is set in the area of ​​the combustion chamber nose bridge where the water passage is difficult to cool in order to reduce the temperature in the combustion chamber nose bridge area and achieve more comprehensive cooling.

[0038] Operating Procedure: When using a three-layer cross-flow cylinder head water jacket to cool the engine cylinder head, during the large circulation of the cooling system, the coolant pump is first turned on to allow coolant to flow into the cylinder head water jacket. The coolant flows from the cylinder head water jacket outlet into the lower water jacket inlet 105. Part of the coolant flowing into the lower water jacket 102 passes through the intermediate water jacket 104, flowing between the upper and lower exhaust manifolds to cool the high-temperature area at the exhaust manifold outlet before flowing directly into the upper water jacket 103 outlet. Another part of the coolant from the upper water jacket 103 outlet flows from the lower water jacket 102 through the column base 106 and cooling corner 108, cooling the upper part of the combustion chamber and the combustion chamber nose area before flowing into the upper water jacket 103. Finally, the coolant flows through the upper water jacket 103. After cooling the engine cylinder head, the coolant flows into the outlet of the upper water jacket 103. The coolant flowing into the outlet of the upper water jacket 103 eventually flows into the water tank through the return pipe. This effectively reduces the engine temperature, achieving concentrated and rapid cooling of high-temperature areas and appropriate cooling of other areas. During the small circulation of the cooling system, the coolant in the middle water channel can also transfer the temperature from the high-temperature area at the exhaust outlet to the low-temperature area at the intake port, making the engine heat up more evenly and achieving a uniform preheating effect.

[0039] Example 2

[0040] Reference Figures 6-9 This embodiment differs from the first embodiment in that it provides a three-layer cross-flow cylinder head water jacket flow rate regulation system, including a water pipe body 200. The water pipe body 200 is located at the lower water jacket inlet 105 and the upper water jacket outlet 109. It includes an inflow pipe 201, a regulating pipe 202 located at one end of the inflow pipe 201, a claw 204 located at the end of the regulating pipe 202 near the outlet pipe 203 (the claw 204 can open and close due to external force), an annular opening 205 on the outer side of the regulating pipe 202, and an outlet pipe 203 connected to the end of the regulating pipe 202 away from the inflow pipe 201. A groove 206 is provided on the outer side of the outlet pipe 203 near the outlet pipe 203. The device includes a retaining ring 207 that engages with the claw 204; and an adjustment assembly 300, which is located on the outside of the water pipe body 200 and includes a magnet 301 fixed on the inlet pipe 201, an adjustment block 302 sleeved on the outlet pipe 203 near the magnet 301, and a thermal winding wire 303 fixed on the outlet pipe 203 away from the adjustment block 302.

[0041] Specifically, the outer diameter of the regulating pipe 202 matches the inner diameter of the inflow pipe 201, and the inner diameter of the outflow pipe 203 is the same as that of the inflow pipe 201. The length of the regulating pipe 202 is slightly longer than the gap between the inflow pipe 201 and the outflow pipe 203. The regulating pipe 202, the inflow pipe 201, and the outflow pipe 203 are all made of materials with good sealing properties to prevent coolant leakage. The claw 204 at the end of the regulating pipe 202 near the outflow pipe 203 is composed of several rod-like strips made of high-temperature resistant and elastic rubber. The inner retaining ring 207 of the regulating pipe 202 can be set in a trapezoidal annular groove. When the claw 204 contacts the retaining ring 207, the claw 204 can retract inward along the retaining ring 207, changing the flow cross-sectional area of ​​the regulating pipe 202. When the claw 204 moves away from the retaining ring 207, the coolant flowing through the regulating pipe 202 pushes the claw 204 open, making the flow cross-sectional area of ​​the regulating pipe 202 larger.

[0042] The rest of the structure is the same as in Example 1.

[0043] Operation process: When coolant flows from the inlet pipe 201 through the regulating pipe 202 and the outlet pipe 203, the operator adjusts the position of the regulating pipe 202 so that the claw 204 contacts and engages with the retaining ring 207, thereby changing the cross-sectional size of the claw 204 in the regulating pipe 202, and thus changing the flow velocity of the coolant in the outlet pipe 203. Since the power of the cooling water pump remains constant, the flow velocity through the inlet pipe 201 remains constant. When the regulating pipe 202 moves towards the outlet pipe 203, the cross-sectional area of ​​the claw 204 decreases, and the flow velocity of the coolant in the outlet pipe 203 slows down. When the claw 204 moves away from the retaining ring 207, the coolant pushes the claw 204 open, increasing the cross-sectional area of ​​the claw 204, thereby increasing the flow velocity of the coolant in the outlet pipe 203, thus achieving the desired change of the coolant flow velocity in the pipe.

[0044] Example 3

[0045] Reference Figures 6-9 This embodiment differs from the above embodiments in that: the three-layer cross-flow cylinder head water jacket flow rate adjustment system includes an adjustment component 300, which is located outside the water pipe body 200. The adjustment component 300 includes a magnet 301 fixed on the inflow pipe 201, an adjustment block 302 sleeved on the outlet pipe 203 near the end of the magnet 301, a slider 304 that cooperates with the slide groove 206 in the adjustment block 302, a number of magnets 305 installed on the side of the slider 304, the north and south poles of the magnets 301 are oriented in the same direction and attract the magnets 301 near the end of the outlet pipe 203, a latch 306 is provided on the end of the adjustment block 302 near the adjustment pipe 202, the latch 306 cooperates with the ring 205, and a thermal winding wire 303 is fixed on the end of the outlet pipe 203 away from the adjustment block 302.

[0046] Specifically, in this embodiment, the thermistor winding 303 is a positive temperature coefficient thermistor. Batteries are provided at the positive and negative ends of the thermistor winding 303. The higher the temperature, the higher the resistance of the thermistor winding 303. The current flows in the thermistor winding 303 clockwise from the inlet pipe 201 to the outlet pipe, thereby generating a magnetic pole from south to north. The higher the temperature, the smaller the magnetic force generated by the thermistor winding 303. The lower the temperature, the smaller the resistance of the thermistor winding 303 and the greater the magnetic force generated.

[0047] Specifically, the north pole of magnet 301 on inflow pipe 201 is placed near the end of outflow pipe 203. Several magnets 305 are fixed inside regulating pipe 202, with the south pole of each magnet 301 facing its north pole, so that the magnets 305 inside regulating pipe 202 can attract the magnets 301 on inflow pipe 201. When the resistance of the thermistor winding 303 increases due to temperature rise, the magnetic force generated by the thermistor winding 303 decreases, causing the magnets 305 inside regulating pipe 202 to attract the magnets 301 on inflow pipe 201. The attraction force of the upper magnet 301 is greater than the attraction force generated by the thermistor winding 303. The regulating tube 202 moves towards the inflow tube 201 under the drive of the magnet 305. When the temperature of the thermistor winding 303 decreases, the resistance decreases and the magnetic force generated by the thermistor winding 303 increases. This makes the attraction force between the magnet 305 in the regulating tube 202 and the upper magnet 301 in the inflow tube 201 less than the attraction force generated by the thermistor winding 303. The regulating tube 202 moves closer to the outflow tube 203 under the drive of the magnet 305.

[0048] Preferably, the operator can also rearrange and change the positions of the thermistor winding 303 and the magnet 301 as needed, and select a suitable negative temperature coefficient thermistor so that the thermistor winding 303 generates less magnetic force when the temperature is low, and the regulating tube 202 is attracted to the magnet 301 side of the outflow tube 203, thereby achieving the goal of saving electricity when the engine stops working, the current generated in the thermistor winding 303 is small or even no current is generated.

[0049] Specifically, the adjusting block 302 is provided with several latches 306 at the end near the inflow pipe 201. The latches 306 cooperate with the ring 205. When the adjusting block 302 moves away from or closer to the outflow pipe 203, the cooperation between the latches 306 and the ring 205 can drive the adjusting pipe 202 to move together.

[0050] The rest of the structure is the same as in Example 2.

[0051] Operating Procedure: When the operator installs the water pipe body 200 and adjustment component 300 at the location with a large engine temperature difference within the three-layer cross-flow cylinder head water jacket, and then starts the vehicle, the engine local temperature is low when the vehicle's cooling system begins to operate. The magnetic force generated by the thermistor winding 303 is greater than the magnetic force exerted by the magnet 301 on the magnet 305 inside the adjustment block 302. The adjustment block 302 drives the adjustment pipe 202 to move towards the outflow pipe 203. The claw 204 retracts in cooperation with the retaining ring 207, increasing the flow rate from the adjustment pipe 202 through the outflow pipe 203. As the flow rate increases and the cross-sectional area decreases, the magnetic force generated by the thermistor winding 303 decreases when the local temperature of the engine increases. The magnetic force generated is less than the attraction force of the magnet 301 on the magnet 305 inside the regulating block 302. The regulating block 302 drives the regulating pipe 202 to move towards the inflow pipe 201 away from the outlet pipe 203, causing the claw 204 to disengage from the retaining ring 207. The claw 204 opens under the impact of the coolant, making the cross-section of the flow from the regulating pipe 202 through the outlet pipe 203 larger and the flow rate slower, thereby achieving better cooling of high-temperature areas.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A three-layer cross-flow cylinder head water jacket flow velocity regulation system, characterized in that: include, The water pipe body (200) is located at the inlet (105) of the lower water jacket and the outlet (109) of the upper water jacket, and includes an inflow pipe (201), a regulating pipe (202) located at one end of the inflow pipe (201), and an outflow pipe (203) connected to the end of the regulating pipe (202) away from the inflow pipe (201); and, Adjustment component (300), the adjustment component (300) is disposed on the outside of the water pipe body (200), including a magnet (301) fixed on the inlet pipe (201), an adjustment block (302) sleeved on the outlet pipe (203) near the magnet (301), and a thermal winding wire (303) fixed on the outlet pipe (203) away from the adjustment block (302); The regulating tube (202) is provided with a claw (204) at one end near the outlet tube (203). The claw (204) can be closed and opened by external force. The regulating tube (202) is provided with an annular opening (205) on the outside. The outflow pipe (203) is provided with a retaining ring (207) that cooperates with the tentacles (204); The adjusting block (302) has a latch (306) at one end near the adjusting tube (202), and the latch (306) cooperates with the ring (205).

2. The three-layer cross-flow cylinder head water jacket flow rate regulation system as described in claim 1, characterized in that: A groove (206) is provided on the outer side of the outflow pipe (203) near one end of the outflow pipe (203).

3. The three-layer cross-flow cylinder head water jacket flow rate regulation system as described in claim 2, characterized in that: The adjusting block (302) is provided with a slider (304) that cooperates with the slide groove (206). Several magnets (305) are installed on the side of the slider (304). The north and south poles of the magnets (305) are facing the same direction and are attracted to the side of the magnet (301) near the outlet pipe (203).

4. A three-layer cross-flow cylinder head water jacket, characterized in that: Including the three-layer cross-flow cylinder head water jacket flow rate regulating system as described in any one of claims 1 to 3; and, The main component (100) includes an engine cylinder head (101), a lower water jacket (102) disposed on the engine cylinder head (101), an upper water jacket (103) disposed on the lower water jacket (102) to connect the upper water jacket (103) and the lower water jacket (102) to an intermediate water jacket (104).

5. The three-layer cross-flow cylinder head water jacket as described in claim 4, characterized in that: The engine cylinder head (101) is provided with a cylinder head water jacket inside, and the cylinder head water jacket is provided with a cylinder head exhaust port at one end of the engine cylinder head (101) on the exhaust side.

6. The three-layer cross-flow cylinder head water jacket as described in claim 4, characterized in that: The lower water jacket (102) has a water inlet (105) at one end near the exhaust side of the engine cylinder head (101), and the lower water jacket (102) has a plurality of column feet (106) that communicate with each cylinder of the cylinder head water jacket at intervals.

7. The three-layer cross-flow cylinder head water jacket as described in claim 6, characterized in that: The lower water jacket (102) is provided with a plurality of cooling channels (107), which are connected to the column base (106) and eventually lead to the upper water jacket (103). The cooling channels (107) are provided with cooling corners (108) at the intake and exhaust valve noses. Coolant can flow into the cooling corners (108), which can make the coolant more easily cool the intake and exhaust valve noses of the engine cylinder head (101).

8. The three-layer cross-flow cylinder head water jacket as described in claim 4, characterized in that: The upper water jacket (103) is provided with an upper water jacket outlet (109) at one end near the air intake side of the engine cylinder head (101). One end of the upper water jacket outlet (109) is connected to the upper water jacket (103) and several cooling branches (107), and the other end is connected to the return water pipe.

9. The three-layer cross-flow cylinder head water jacket as described in claim 4, characterized in that: The intermediate water jacket (104) is located between the upper and lower exhaust channels. The intermediate water jacket (104) has a connecting point (104a) at both ends, and the connecting point (104a) is connected to the upper water jacket (103) and the lower water jacket (102).

Images